Means for removing chips from the cutters of cutting-off saws and the like.



G. GORTON. MEANS FOR REMOVING GHPS FROM THE GUTTBRS OF CUTTING-OFF SAWS AND THE LIKE.

Patented Jan. 27, 1914.

' 2 Sanus-SHEET 1.

TE@ STATES 'PATENT OFFICE.

GEORGE GORTON, OF RACINE, WISCONSIN.

T/IEANS FOR REMOVING CHIPS FROM THE CUTTER-S OF CUTTING-OFF SAWS AND THE LIKE.

To all 107mm t may concern.'

Be it known that I, GEORGE GO'RTON, a citizen of the United States, reslding at Racine, in the county of Racine and State of lVisconsin, have invented certain new and useful Improvements in Means for Removing Chips from the Cutters of Cutting- Oit' Saws and the like, of which the following is a specication.

This inventioirrelates to certain improvements in devices for removing chips from the cutters of metal cutting-off saws and the like; and the objects and nature of the invention will be readily understood by those skilled in the art in the light of the following explanation of the accompanying drawings illustrating what l now believe to be the preferred embodiment from among other formations and arrangements within the spirit and scope of my invention.

My Patent No. 1,043,093 dated Nov. 5, 1912, for improvements in metal cutting oftl devices discloses several different specih'c constructions of chip breakers or removers including a sliding bar type adapted to reciprocate longitudinally and apply endwise blows to the chips, and various forms wherein swinging hammers project radially from an axis on or about which such hammers swing in applying the chip dislodging blows. In my said patent, I make broad generic claims covering the provision of any means for dislodging chips from the cutters of metal cutting oif machines and the like, and specific claims devoted to the sliding endwise movable bar type of chip removing hammer.

My present invention relates to the radial or swinging hammer type of chip remover, and this application is a continuation of my said earlier and broad case in so far as claims herein that read on the structures disclosed by Figures C and 7, of said earlier case.

It is an object of the present invention to provide a chip removing device for metal cutting oit' machines that will be exceedingly etl'ective and durable and will extend outwardly a minimum distance beyond the side face of the saw blade.

A further object of the invention is to provide a chip dislodging hammer swing- Specication of Letters Patent.

Application led October 15, 1912.

Patented Jan. 27, 1914. Serial No. 725,961.

able about a center and provided with supporting and operating means that can be readily accommodated between the frame sides and head of a swinging head cutting off machine.

A further object of the invention is to provide a comparatively simple, durable and compact chip breaker peculiarly adapted for application to heavy duty cutting oft machines.

A further object of the invention is to provide certain novel arrangements of parts whereby a highly efficient improved chip dislodging device will be produced.

The invention consists in certain novel` features in construction and in combinations and arrangements as more fully and particularly set forth and specified hereinafter.

Referring to the accompanying drawings Fig. l, shows a portion of a cutting olf machine head in front elevation, and a chip hammer and its carrier applied thereto and shown in partial longitudinal section. Fig. 2, is a vertical detail section taken in the plane of the line 2-2, Fig. l, certain clamping bolts not being shown. Fig. 3, is a detail end view of the clamp collar removed from the outer end of the hammers rock shaft. Fig. 4, is a detail view showing the hammer in end elevation and in operative relation with respect to a cutter of the saw blade. Fig. 5, is a detail front elevation showing a modification. Fig. 6, is a detail end view of the modified structure of Fig. 5, showing the same in operative position with respect to the cutter` of a rotary saw blade.

ln the drawings, I show a portion of a cutting off machine having a swinging head or feed carriage 2, in which the rotary hollow drum 3, is mounted. This drum carries the saw blade el., having` a central work receiving opening. The blade is provided with cutters 5, arranged around this opening and having' their operative cutting ends or points 50, so arranged as to operate on the work held projecting through said opening. These cutters are usually formed with throats 5l, in or to which the chips cut from the work often adhere with resulting liability of cutter breakage unless the chips are removed before the cutters again enter the kerf in .the saw blade carried and driven the work as will be readily understood by those skilled in the art after perusal of my hereinbefore mentioned application.

Tn the particular example illustrated, the means for removing the chips from the cutters after they have passed from the kerf in the work and before t-hey again pass into operation, comprises a tubular support or casing arranged between the frontframe upright and the front side of the cutting o` machine head, and about radially of said head and the saw blade. This casing is removably secured at its outer end portion, to or at the front side of said head or feed carriage and from thence extends inwardly toward the central opening of the saw blade and is arranged in front of the saw drum and the side face of the saw blade. A spring held rock shaft is longitudinally arranged within said casing and at its inner end is provided with a hammer or striking head or end projecting radially and rearwardly from said shaft into the path of movement of the working or operative parts of the saw blade cutters so as to snap from cutter to cutter, under the'action of the spring-held shaft, during the rotation of the drum and thereby. The said tubular casing 6, is elongated, and is normally fixedly held in position by a surrounding clamp 7, removably bolted or otherwise normally fixedly secured by bolts 70, to the front side of the head or box Q, inclosing and carrying the cutter disk or saw drum. This clamp is usually secured to the head 2, near the front edge portion thereof, with respect to the direction of feeding movement of said head, and the clamp rcmovably receives the outer end portion of the tubular casing 6. The casing 6, longitudinally receives and provides bearings for the elongated rock shaft 8, and the ends of the shaft project beyond the ends of the casing.

A coiled torsional spring 9, is longitudinally arranged within the casing and the inner end 10, of the spring is held to and in the casing against rotary or axial movement A bv any suitable abutment, while the outer end 11, of the spring is confined to the rock shaft. The end 11 of the spring is preferably adjustably confined to the shaft by a suitable spring abutment rotatively adjustable on the shaft. For instance, I show a clamp collar 12, on the projecting rear end of the shaft and normally abutting the rear end of the casing or shaft support 6, and receiving the end 11, of the spring. The tension of the spring with respect to the shaft, can be adjusted by this collar and the power of the spring is applied to the rock shaft through the medium of said collar. lf so desired, the end of the shaft beyond said clamp collar, can be threaded to receive a clamp nutB, abutting against the outer end of said clamp collar and maintaining the same against outward longitudinal movement on the shaft.

The projecting inner end of the shaftis provided with an inwardly or radially projecting striker, finger, or hammer 14. This striker or hammer can be of any suitable formation united to or formed with the shaft in any suitable manner. In the preferred form, l show a metal plate 14: of the desired degree of hardness, and vertically arranged so that its lower edge forms the cutter and chip engaging portion. At its outer end this plate is formed with a squared or angular hole removably fitted on a correspondingly squared or angular portion 15, of the shaft 8, and against a shoulder formed by an enlargement 16, of the shaft. The outer end of the shaft beyond portion 15, is reduced and threaded to receive removable clamping washer 17, and nut 18, whereby the hammer is tightly yet removably'held in place on the shaft.

In the modified construction, the inner end of shaft 8, is formed with an enlarged head 15', having a transverse hole therethrough to removably receive a radially projecting pin 14C', forming the cutter and chip striker or hammer. The split head 15', is provided with a tightening bolt 1G", and this head forms a split clamp whereby the pin lll', is rigidly held therein, and whereby the pin is rendered removable on loosening said bolt.

The shaft 8, is afforded a limited range of longitudinal movement in its support or casing 6, and is yieldingly held to its limitv of inward longitudinal movement by compression spring 19, coiled on the inner end of the shaft and interposedA between the inner end of the casing 6, and the shaft en largement 16, or between the casing end and the split head or clamp 15', of the shaft in the modified struct-ure.

The cylindrical or tubular casing or housing 6, projects outwardly beyond the outer end of the securing clamp or bracket 7. The outer end surface of this bracket is formed with an annular series of uniformly spaced sockets 7a, and if so desired, the socket 7a, can be indicated by a corresponding series of visible identifying marks, such as A, B, C, D, etc., on the circumferential portion of the outer end of the bracket, and respectively located adjacent to the sockets identified thereby.

An adjustable removable 'clamp collar 7b, is fixedly clamped on the projecting end of the tubular housing and adjacent to the outer end of the bracket '7 and to the spring adjusting and securing collar 12. This collar 7b, is provided with an adjustable screw 7C, adapted to fit any one of the sockets 7a, to properly locate and position the tubular housing 6, in the clamp 7, and with respect to the cutters of the rotary saw blade. I show the collar 7b, formed with a transverse socket T, and the collar 12, formed with a transverse hole or perforation 12a, adapted to be brought into alinement with the socket 7d, to permit the insertion of a removable locking pin 12b, (dotted lines Fig. l) through said hole and into said socket to lock the collar 1Q, and consequently the rock shaft and hammer in a certain abnormal position and against the tension of spring 9. For instance, the collar 7b, is preferably so arranged with respect to the normal position of collar 12, that when collar 12, is swung against the tension of spring 9, to bring the hole 12a, in alinementwith the socket 7d, the hammer or striln'ng head 14, will assume a vertical position entirely removed from the cutters, and can be held in such position by inserting the removable locking pin 12", through said hole and into said socket. It is desirable to thus hold the hammer from operative position when cutters are to be removed from and inserted in the saw blade.

If so desired the spring locking and adjusting collar 12 can be formed with a radial socket 12C, to receive a removable pin or other instrument (not shown) to serve as a handle in swinging said collar on its shaft or said collar with its shaft and against the tension of spring 9, when adjusting said spring or when swinging the hammer to inoperative position.

In assembling the parts, the housing G, containing the shaft S, and its actuating spring but without the hammer head 14, is inserted longitudinally and inwardly through the clamp bracket 7 and after being axially and longitudinally adjusted in said bracket to approximately the correct longitudinal and axial positions for the proper location of the hammer head, said housing is fixed by tightening the clamping screw of said bracket.

The desired hammer actuating tension of the spring 9, is then secured by rotating the spring adjusting collar 12, the necessary distance on shaft 8, and then rigidly clamping the same to said shaft. The collar 7b is then rotated on the end of housing 6, until socket 7d, is in such a position with respect to the normal operative position of the hammer head 14, that when the collar 12 is rotated to bring its hole 12a, into alinement with socket Td, (to receive locking pin 12b) the hammer head 14 will assume a vertical or other inoperative position ont of the path of movement of the saw blade cutters. YVhen the collar 7b is thus located, the screw 7 is rotated to project its head into one of the indicating sockets 7a, and the collar is then xed on the housing by tightening the clamping screw of such collar. The proper longitudinal position of the locating collar 7b, consequently of the housing G, is determined by the longitudinal adjustment of screw C, while the axial adjustment of the housing is determined by the particular socket 7a receiving the screw, and identified by a particular index mark A, B etc. provision is a matteil of great convenience in applying the housing, after removal for repair or other purposes. lVhen about to remove the housing, it is merely necessary for the operator to take a note of the said locating or identifying mark A, etc. and then the device can be quickly and accurately reassembled in proper position by locating the screw 7c, in the same socket 7a as before.

The rock shaft is arranged beside the front face of the saw blade, and the hammer extends inwardly from the shaft into the path of movement of the cutters 5. at a portion of said path traversed by the cutters after leaving the work. The spring 9, constantly tends to rock said shaft in a direction to hold the hammer to the cutters. The shaft constantly tends to rotate to swing the hammer in a direction opposed to the direction of movement of the cutters past the hammer. For instance, the cutters move upwardly past the hammer and the spring` held shaft constantly tends to force the hammer down. The hammer is successively swung upwardly and outwardly by the advancing cutters and is thereby held back and then suddenly released by the passage of each cutter to fly down under the tension of the spring 9, to impart a forceful blow against the throat portion of the next succeeding cutter or against a chip a, lodged thereon. The hammer successively strikes a sharp blow against the throat portions of the cutters, and will efficiently dislodge chips adhering thereto.

The compressing spring holding the shaft longitudinally permits longitudinal movement of the shaft to prevent jamming or wedging of the hammer against the cutters, under certain conditions, and also enables the hammer to yield or move in a direction radially of the saw blade, in striking or iinparting the chip dislodging blows. and thereby rendering said blows possibly more etlicient in dislodging chips.

The hammer and supporting device arrangement is such that the device is exceedingly durable and eflicient for both light and heavy duty machines. The arrange ment is also compact, and can be employed even in machines of the swinging head or feed carriage type where there is but a comparatively narrow space between the front side face of the carriage and the adjacent main However, I do not wish to limit my invention to use in connection with any particular type of cutting off machinery.

It is evident that various changes, variations and modifications might be resorted to This index frame supporting upright.

from, in combination with a saw Without departing from the spirit and scope of my invention and hence I do vnot Wish to limit myself to the exact disclosures hereofV except as required by the scope of the claims.

That l claim is 1. A chip remover comprising a springheld rock shaft provided With a radially projecting hammer, in combination With a saiv blade having its cutters arranged to successively lift and release said hammer.

2. A chip remover co-mprising a sivingable spring-held radial hammer, in combination with a saw blade having cutters arranged With respect to said hammer so as to be successively struck thereby to dislodge chips therefrom.

3. A chip remover comprising a support providing a bearing, and a sivingable spring-lield hammer having its axis mounted in said bearing, in combination With a saw blade having cutters cooperating with said hammer to lift and release the same.

et. A chip remover comprising a rock shaft having a hammer projecting radially thereblade having its axis of rotation arranged approximately at right angles to the axis of said shaft and having cutters cooperating with said hammer to be successively struck thereby to dislodge chips from said cutters.

5. A chip remover comprising a hammer swingable about a fixed axis, in combination with driving means carrying a series of cutters cooperating with said hammer to successively receive chip dislodging blows therefrom.

6. A chip remover comprising a radial hammer having a free striking end and provided with actuating means, a tubular housing carrying said hammer and actuating means, and a clamp bracket. fo-r supporting said housing and removably and adjustably receiving` the same.

7. A chip remover comprising a rock shaft provided with a radially projecting striker and means for actuating the striker in combination With a tubular housing carrying said shaft and actuating means, and a clamp support removably receiving said housing and adapted to be fixed to a cutting off machine.

S. A chip remover comprising a sivingable hammer having a free striking end, and supporting` means providing an axis for said hammer adapted to be arranged beside a rotary cutter blade in combination With a rotary cutter blade having cutters successively receiving chip dislcdging blovvs from said striking end.

A chip remover comprising a swingable hammer having a free striking end, said! hammer being yieldingly movable in the direction of the axis on which it swings in combination with a blade having cutters i successively struck by said striking end and successively swinging the same on its return movement.

10. A chip remover comprising a spring held sivingable hammer composed of a plate arranged to swing edge Wise and having a striking edge.

11. A chip remover comprising a tubular casing provided With means for securing the same to the feed carriage of a cutting olf machine, a rock shaft arranged in said casing and provided with a torsional actuating spring, and a hammer actuated by and projecting radially from said shaft.

12. A chip remover comprising a tubular casing, supporting means therefor, said casing being removable from said supporting means, and a spring held sivingable hammer provided with an axis mounted in said casing in combination With a saw blade having its cutters arranged to be successively struck by said hammer to dislodge chips from said cutters.

13. A chip breaker comprising a support, a rock shaft mounted therein, said rock shaft having a limited longitudinal movement in said casing, a spring yieldingly holding said shaft to its limit of longitudinal movement in one direction, said shaft provided with a radially projecting hammer, and means for actuating said hammer.

14. A chip remover comprising a support, a rock shaft mounted therein and provided With an actuating spring, a hammer composed of a plate having a striking edge carried by and projecting radially from said shaft, and means whereby said hammer is removably secured to said shaft.

l5 A chip remover support, a tubular casing removably carried by said clamp support, and a spring held sivingable hammer provided with an axis mounted in said casing.

16. A chip remover comprising a supporting clamp, a removable holder adjustable axially and longitudinally in said clamp, index means for indicating the adjustment of said holder with respect to said clamp, a hammer carried by said holder, an actuating spring, and means for adjusting the tension of said spring, said spring and its adjusting means being carried by said holder and removable therewith.

17. A chip remover comprising a support, a tubular housing carried by and removable from said support yand longitudinally and axially adjustable therein, means for fixing said housing to said support in the desired longitudinal and axial adjustments, said housing and support provided With a longitudinally-adjustable stop and cooperating annular series of indexed abutments determining and indicating the adjustments of said housing longitudinally and axially1 a spring-actuated rock shaft carried by said housing, and a striking head carried by said Shaft.

1S. A supporting clamp at one end having an annular series of visibly-indexed abutments, in combination with a spring-actuated chip-remover hammer and its holder, said holder being removably mounted in said clamp and adjustable axially and longitudinally therein and provided with a longitudinally-adjustable stop adapted to any one of said abutments.

19. In combination, a support having an annular series of visibly-indexed abutments, an axially and longitudinally adjustable elongated housing removably carried by and adapted to be normally fixedly secured to said support and provided with and carrying a laterally-projecting member rotatably adjustable with respect to said housing and normally fixed thereto, a stop carried by said member and adapted to any one of said abutments and adjustable longitudinally with respect to said housing', and a movable chip removing device and its actuating means carried by said housing.

Q0. In combination, an elongated housing, a rock shaft carried thereby and projecting therefrom and provided with and actuating a chip removing hammer head, a coiled spring for actuating said shaft, said spring having one end conlined to said housing, a springadjustingand -locliing member receiving the other end of said spring', said member being rotatably adjustable on said rock shaft and normally fixedly secured thereto, and a support for fixedly securing said housing in operative position.

21. In combination, a tubular housing, a rock shaft extending therethrough and provided with and actuating a chip removing hammer head, a laterally-projecting inember carried by said housing, a torsional shaft-actuating spring arranged in and confined in said housing', a spring-adjusting element coupling said spring to said shaft and whereby the spring can be adjusted to vary the tension thereof with respect to the shaft, means whereby said element can be locked in abnormal position to said member to hold said hammer head in inoperative position, and means to secure said housing with said hammer head in operative relation with respect to the cutters of a cutting off machine.

22. In combination, a supporting clamp adapted to be secured to a cutting off machine, an elongated tubular housing removably and adjustably arranged in and carried by said clamp and normally xedly secured therein, and a chip removing hammer head and its actuating means carried by and removable with said housing and comprising an adjustable housing-position-determining stop.

23. In combination, a housing having an adjustable exterior clamp, a roel; shaft arranged in said housing and projecting therefrom and carried thereby and provided with a chip removing hammer head, a spring for actuating said shaft, and a spring-adjusting clamp normally fixed on said shaft and connecting the spring thereto and formed with a locking-pin hole adapted to register with a portion of said clamp on Said housing to receive a locking pin to hold the shaft in abnormal position against the tension of said spring with the hammer in inoperative position.

24. In combination, a clamp support having one end formed to provide an annular series of abutments, a tubular housing removably and adjustably arranged in said support and normally tixedly clamped thereby. an adjustable clamp on and carried by said housing adjacent to said support end and having a longitudinally-adjustable stop adapted to engage any one of said abutments, a rock shaft extending through said housing and provided with and actuating a chip-removing hammer head, a torsional spring on said shaft and coniined to said housing. and a clamp on said shaft and securing the spring thereto and formed to receive a locking pin to lock the Same to said adjustable clamp when said rock shaft is swung to an abnormal portion against the tension of said spring.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE GORTON.

IVit'nesses C. EILANnsoN,

E. S. Gunn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

